Which of the following may display two different grain sizes?
a.
metamorphic rock
c.
igneous rock
b.
sedimentary rock
d.
magma

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.

they use sunlight, water, and carbon dioxide to make sugars - c.